Abstract
From the results of the simulation study including pellet ablation and 1-D transport code, it is found that a high speed pellet injector with pellet velocity of more than 3 km/s is necessary for the penetration of the pellet with diameter of 3 mm into the core region under the expected plasma condition of Large Helical Device (LHD) of heliotron/stellarator type with superconducting coils at NIFS in Japan. Therefore, a two stage pellet injector was constructed and tested successfully in order to obtain the pellet velocity range of 3 km/s. Based upon the above results, a high speed flexible multiple-pellet injection system `HIPEL` for LHD is proposed. HIPEL consists of independent (1) 10 two-stage gun barrels and (2) 10 single-stage gun barrels. It has multi purposes such as refueling and flexible density profile control, diagnostics and the other functions. (author).
Citation Formats
Sudo, S, Kanno, M, Kaneko, H, Saka, S, Shirai, T, and Baba, T.
Proposed high speed pellet injection system `HIPEL` for Large Helical Device.
Japan: N. p.,
1993.
Web.
Sudo, S, Kanno, M, Kaneko, H, Saka, S, Shirai, T, & Baba, T.
Proposed high speed pellet injection system `HIPEL` for Large Helical Device.
Japan.
Sudo, S, Kanno, M, Kaneko, H, Saka, S, Shirai, T, and Baba, T.
1993.
"Proposed high speed pellet injection system `HIPEL` for Large Helical Device."
Japan.
@misc{etde_10156143,
title = {Proposed high speed pellet injection system `HIPEL` for Large Helical Device}
author = {Sudo, S, Kanno, M, Kaneko, H, Saka, S, Shirai, T, and Baba, T}
abstractNote = {From the results of the simulation study including pellet ablation and 1-D transport code, it is found that a high speed pellet injector with pellet velocity of more than 3 km/s is necessary for the penetration of the pellet with diameter of 3 mm into the core region under the expected plasma condition of Large Helical Device (LHD) of heliotron/stellarator type with superconducting coils at NIFS in Japan. Therefore, a two stage pellet injector was constructed and tested successfully in order to obtain the pellet velocity range of 3 km/s. Based upon the above results, a high speed flexible multiple-pellet injection system `HIPEL` for LHD is proposed. HIPEL consists of independent (1) 10 two-stage gun barrels and (2) 10 single-stage gun barrels. It has multi purposes such as refueling and flexible density profile control, diagnostics and the other functions. (author).}
place = {Japan}
year = {1993}
month = {Nov}
}
title = {Proposed high speed pellet injection system `HIPEL` for Large Helical Device}
author = {Sudo, S, Kanno, M, Kaneko, H, Saka, S, Shirai, T, and Baba, T}
abstractNote = {From the results of the simulation study including pellet ablation and 1-D transport code, it is found that a high speed pellet injector with pellet velocity of more than 3 km/s is necessary for the penetration of the pellet with diameter of 3 mm into the core region under the expected plasma condition of Large Helical Device (LHD) of heliotron/stellarator type with superconducting coils at NIFS in Japan. Therefore, a two stage pellet injector was constructed and tested successfully in order to obtain the pellet velocity range of 3 km/s. Based upon the above results, a high speed flexible multiple-pellet injection system `HIPEL` for LHD is proposed. HIPEL consists of independent (1) 10 two-stage gun barrels and (2) 10 single-stage gun barrels. It has multi purposes such as refueling and flexible density profile control, diagnostics and the other functions. (author).}
place = {Japan}
year = {1993}
month = {Nov}
}